Closing and latching mechanism for doors



March 10, 1925. 1,529,236

V T. BRADY CLOSING AND LATCHING MECHANISM FOR DOORS F118;: July 7. 1924 2 Sheets-Sheet 1 A? ,9 homas Brad AT TOENkIYJ March 10, 1925. 1,529,256

'r. BRADY CLOSINGAND LATCHING MECHANISM FOR DOORS Filed July '1, 1924 2 Sheets-Sheetiz INVENTOR T/mmaa Brady Patented Mar. 10, 1925.

UNITEDVSTAITJESD THOMAS BRADY, or EAST ORANGE, NEW JERSEY.

CLOSING AND LATCHING MECHANISM FOR IlOORS.

Application filed July 7,

To all whom z'tmay cancer rt:

Be it known, that I, THOMAS BRADY, a citi zen of the UuitedfStates, and a resident of East Orange, county of Essex, and State.

of New Jersey, United States of'America, have invented certain new and useful Improvements in Closing and Latching Mechanism for Doors, of which the following is a specification.

This invention relates to closure mechanism particularly adapted for use in connection with doors or closures for hoppers, such as are used on railway cars. l

Closures, such as those identified, are subjected to great pressure and to severe'usage and often become warped or distorted. For this reason, it is diflicult to eifect the closing andopening of the doors or gates. This will be evident when it is borne in mind that such closures are used for the chutes of freight cars used for transporting coal and similar products. In. order to manipulate certain closures of the type specified, it is necessary to use tools or bars in order to force the door to closed position and to use a hammer or other tool to release the latch.

extraneous tools or bars for its latching and unlatching.

Another object of the invention is to provide a device of the character specified having means automatically operable when the door is closed for preventing accidental release of the door latching means.

Another object of the invention is to provide latching mechanism having means for r retaining the door in'partially closed position during the final manipulation of the closing and latching means to swing thedoor to full closed position;

Another object of the invention is to'provide door closing and latching means having leverage means forexertinga strong pull on the bar during its closing movement.

Further objects of the invention will ap- -1924. Serial No. 724,637.

. pear from the following specification taken in connection with the drawings, which form a part of this application, and in'which ing the hopper and means. constructed in and latching the door, the in closed position.

Fig. 1 is an elevational view showing a 1 portlonof a hopper, a gate or door for 01057, p

Fig. 2 is a view similar to Fig. 1, but" showing the door unlatched and the door closing and latch mechanism swung to in elevational view partly broken away showing the arrangement of the 010s ing and latching mechanism r h ippe I Fig. 5 is a detail sectionalelevation taken substantially on line'5'5 of Fig. 1.

Figs. 6 and 7 are sectional elevations on a railway taken substantially on line and 7 -,7.

of Fig. 1..

Fig. 1, but showing'a simpler form of latching mechanism. 7

Fig. 9 is a view similar to Fig. 1, but

showing a slightly modified form of closing and latching means.

Fig. 10 is a view similar. toFig. 9, but showing the doorin partly closed position.

Fig. 11 is a view similar to Fig. 9, but showing the latching mechanism released and the door open.

. 12 is a sectional elevation taken substantially on line 12-42 of Fig. 9, and

Fig. 13 is a view similar to Fig. 9, but" showing a slightly different form of link.

The invention briefly de'scribed'consists of door closing and latching means comprising a bar pivoted on a fixed pivot and having pivoted thereto a second bar. named bar'h-as a latching element adapted to latch 'thedoor-in full'closed position and the second bar has a latching element adapted to engage the door before it reaches full,

' Fig. 8 is an elevational view similar to,

The first element of the second bar has engaged the p door. Means is also provided forPreventing accidental release of the latching meansatter the door has been closed and latched.

' F urther' details" of the invention will appear 7 from the following description.

Referring, first, to the embodimentoft-he invention shown in Figs; l to 7 inclusive there isillustrated a portion 10 of a hopper hown in Fig. 1. The pawl 17 has its"npperendoflset' or'jflanged as shown agtflEB' for reasons hereinaft'er' d'escribed (See-Fig; Afse'c ond latching meniber' 19 ispivot'e'd'jatly to the" bar-15, and, as shown in Fig. 1, isadapted to extend under the angle 'iron'bar 13 whenthe gagernentof the latching member 19 with r 1 I .theundersnrfa'ce'of'thebar13'prevents accidentalfreleaseof thel'atching iiie'ans; 7 An arm' or 'bzif'QU'is pivoted at'21 to-the bar 15 and attention is directed to' thefact' that the pivotf l f i's v disposed on the opposite side 0,1 the pivo tl lfi of th'eb'a r 15 from-the inching; elements 17 and 19; A pawl, or tooth 22 i s fixedly seciired to-the'l a med-m such a po sitionjhat this pawl will-engage the bar-13ers shown in Fig;.3 before thedoor 'reaches its full closed position r An arm 23 ,is secured to th e bar-"15 and has a flanged lower endf24: adapted to limit the swinging movement of the erm about its pivot 21 and to 'engage-the tree end-of 1 this arm 5 and f'relas'e the jp' wl- 22', when}; the

release the door. I

bar .15 isswiing in a clockwise direction fto' Tle upp'ei' 'en'd 'o'f the meinbierfl) oflset as shown at25v in Fig. 7 and thisoffset'end c';tn"be engaged the operator to "release the ,latcl iing'elenient 19 froin'its latching position; I

The strnctnre jn'st' "described bpr'etes as renews; The door or gatell is first swun to theposition shown in Fi '3 wherein the" pawl- 22. vcarried by the a'rin 20" will" autorn'ittical'ly engage over the bar 18',"tln1s"hold 'ing thedo'orifl partially closed-position;

When this position has b'e'en r'ealchied down were" ressuiefpiijtiiefree end, of" the bar 15 will exert a strong pnll because of the lever ag'fe" obtained-upon the door and the doorcim beff rc'ed to its iiillrclose'd positiofisliownin ieitiheii e w l p' 111w 'e'cw ij thejbar'13 and'thelatchingclement 19 will drop into place beneath the bar 13 thereby securely retaining the door in closed position. In order to release the door, the latch-' ing ineniberl 19' is first "released by'swinging this1ne1nb'er"in an anti-clockwise direction aboutdtspivot 19'. Then the bar 15 is swung in a'clockwisedirection and the offset end 24 of the member 28 will engage and lift 1 the ar'In 20"aI'id" pswi 22, thus releasing the door.' The swinging movement of the bar' '1 5 is liniited by' a stop 26 011 the chute 10.

Inthe embodiment of the invention shown. in Fig. 8, the 15' carriestonly'the fixecr latching pawl 17' andthei'latchingfelement 19.

Iii/the embodiment of the invention i'llus'-' trated 'incliisive', the bari35 is pivoted at 36 totlre1chnte'l0and has 36:.

and ext'ending laterally therefroniv as show'n at 39in Fig. 12 when the dooris'inclosed positro as shown 9. r

A latching element 40' similar to" the ele-- merit 19"of the foregoing" figures is pivoted atv 11 to the bar 35" andl'ias an offset upper end AQ.

'Inste'adiof an arm such as the arm-20 m th embo'dimeiitofthe invention shown in;

Figs; '1: to 7 incli siv e5 the b ar 35 in' this instance has pivotedthereto at B-alink 4 4 having; turn-b'uckletfi therein. The free end of ,th'eMtL rn-biickle carriesfa loop 'or 46: adaptedto' ei'i'g'age over' the end 39 of the.

baii 3 8f A stop on: the chute 1'0 limits the swijrig'ingmmvemnt of the: barin an anti clockwise direction as shown-in Fig. 9 and: this stopalso limits the swingingmov emerit. ina clockwise direction as shownin F i'il V V The embodimentbf the invention just described operates asfollows; The door 11' isfifst swiing to posit'ion'in which the loop; or ring 46' can" be engaged over the end '39 of the bar The bar' 35 is then" swiing" about its pivot in an anti-clockwise directic-n; thereby} bringing the door to its closed position and when this position has" been reached; the arm' 37 will engalg'e' over the end 39 of the bar 88 and the latch 40" will/drop into position beneath this bar,

thereby-preventing any accidental*release'of the lateh This form "of the inventionerilibles' the'le'verage to 'be exerted over 'a wider rangethen is'i ossible with thefor'm' clii s'iveyand thelength of the 111 1544 can be regiilated' by'tlie'tnrn-biickle" 15; The only difference between the en'ibodini'e'nt of the invention shown in'Fig; 18' and-thatsliown" in Figs. 9 to 12 i11clusive;; resides'in'the'snb stitution- 0f a chain 50 for the link 44.

be seenfthat simple and practical inea'ns has been provided for-closing and latching doors or gates and that'the'use of this mechanism enables the operator to exert astrong leverage, thereby facilitating the closing and latching of the door. ,Although certain specific embodiments of the invention have been'particularly shown and described, it will be understood that the invention is capable of modification and 7 bar and first named latch against accidental displacement after the door has been closed and latched. I

2. In combination, a door movable to open 3. In combination, a door movable toopen and closed position and means for closing and latching said door comprising a bar pivoted on a stationary pivot,-a latch fixed on said bar and adapted to engage the door in its closed position, an arm pivoted on said bar and having a latching pawl engageable with the door when the door has been moved posed on the opposite side of the bar pivot from the latch fixed thereon, and means pivoted to said bar and adapted to retain the latching means in operative position and against accidental displacement.

I. In combination, a door movable to open and closed position and means for closing and latching said door comprising a bar pivoted on a stationary pivot, a latch fixed on said bar and adapted to engage the door in its closed position, an arm pivoted on said bar and having a latching pawl engageable with the door when the door has been moved to partially closed position, the pivotal connection between said arm and bar being disposed on the opposite sideof the bar pivot from the latch fixed thereon, and means carried by said bar and engageable with said arm to release the arm latch when the bar is swung about its pivot in one direction.

5. In combination, a door movable to. open and closed position and'means for closing and latching said door comprising a bar pivoted on a stationarypivot, a latch fixed on said bar and adapted to engage the door in its closed position, an arm pivoted on said bar and having a latching pawl engageable withthe door when the door hasbeen moved to partially closed position, the

pivotal connection between said arm, and bar being disposed on-the opposite side of the bar pivot fromthe latch fixed thereon,

means pivoted to said bar and adapted'toretain the latching means inoperative position and against accidental displacement, and means carried by said bar and engageable with said arm to release the arm latch when the. bar is swung about'its "pivot in one direction. a 1 6. In'coinbmatiom-a door movable to open and closed position and means for closing and latching said door' comprising a bar pivoted on a stationary pivot, a latch fixed on said bar and adapted to engage the door in its closed position, and a member pivoted to said bar andhaving a latch adapted to engage the door when the door has been swung into partially closed position, the pivotal connection between the member and the bar being disposed on the' opposite side of the bar pivot from the latch fixed to said bar.

and closed position and-ineansyfor closing and latching said doorcompris'inga bar pivoted on a stationary pivot, a latch fixed on said bar and adapted to engage the door in its closed position, and an adjustable member pivoted to said bar and having a latch adapted to engagethe door whenthe door has been swung into partially closed. V position, the pivotal connection between the member and the bar being disposed on the to partially closed position, the pivotal connection between said arm and bar being dispivoted on a stationary pivot, a latch fixed on said bar and adapted to engage the door in its closed position, an adjustable member pivoted 'to said bar and having a latch adapted to engage the door when thedoor has been swung into partially closed -posi tion, the pivotal connection between'the -member and the bar being disposed on the opposite side of the bar pivot from the latch fixed to said bar, and means carried by the bar for engaging and releasing the latch carried by the pivoted member when the door is swung'in' one direction.

9.. In combination, a'door movable to open and closed position andlnieans for closing and latching said door comprising a bar pivoted on a stationary pivot, a latch fixed 7 Q In combination, a door movable' 'to open;

1 oil V said barand adapted .to engage the? door initsrclosed position-, an adjustablemember' pivoted to said; bar." and having. a-latch adapted. to engage-:-the;door. when-the door- I has; been. swung: into partially closedr' piosi-w tion', thexqipivotal connection: be-tWeenKthe; '7 member and thebar being) disposed on the opposite side of the bar pivot from rthe latch fixed .to sa-id' bar, meansmcarriedz' by the bar for: engaging and releasing. the latch carriedv by: the pivotedqmember .When. .the bar is swungzin onezrdirectiongaand means: carriedi; by; sa1-d: bar=. for retamingithe bar: latclr; and;- thelatch carried by saidmember-inlatchingg .15

position against: accidental displacement.

tion,. the. pivotal; connection: between the.

member. and the; bar beingv disposed on the. opposite side. of the; bar pivot fromthe-- latchfixedto said: bani-means carried by the. bar for engaging 1 and releasing. theflatch. 'carriediby the pivoted: member when the bar is; swung in. one direction and: gravity y actuated means carried by sald bar for re. taanmg the; bar-latch and. the. latch carried xpi vo't, a latch carried by saidbar and en-j.

' gagea-blewith the laterally extend1ng;.mem--;

fber when the door is in, partially closedvposiby said member in latching position, against;

accidentaldisplacement.. I v 11.'-'1n.comb1nat1on a structure'having door: pivoted.- .thereto ,1 a -member secured: to: said. door and extending laterally therefrom and; means for closing; and? latchingsaid door comprising. a: bar mounted. .on a fixed.

bersecnred to theodoor when. the dooris in i I closednposition, and. a m.e1 nber pivoted to :said bar and having a latchmgfelem'ent Jenr gagcable With-saidz laterally, extending memtion; the pivotal connection between-said member and said .bar-beingdisposed onthe opposite side. of the bar pivot from thel'atchcarriedv by the bar.. H I 12-. In. combination, door door comprisinga bar mountedon a fixedpivot; a.; lateh carried by said-barand. en-

" 'pivoted to saidbarandhaving: a latching gageablfe with the laterally extending. memv I member *andsaid bar bemgi disposedi ontheopposite sideaoi; the -bar 'pivot fromthe latch carriedr-bv the? bar; gravity' actuated I bet secured to thexdoor when the door is in 'closed-pos1t1on; I and an: ad ustableamember elementeengageable- With said laterally ex tending member when the door isin. par.-

1 1 many closed. position,;-tl1ej pivotal connection .betweenesaid. member and said. bar "being 1:, aaecaeai disposed. oirzthe OPPOSltG SldB? oi the bar pivot fromrtheslatchicarried by the bar. 13. In combination, astructurethavingf a door-":piyotedthereto aem'ember secured to said: doortand; extendingilaterally therefrom and means; for closing. andilatcliiingii said door: comprising: a bar mountedipnsa fiixe'd pivot; a: latch carried byisaid bar and en-g gageable iwitlrtheilaterally exteniding mem ber.- secured. to the door When the door is in. closed? position, a jmember pivoted-2: to said bar and"; having; .a latching: .ele ent engageable With said laterally extend. member when: the door is in: partially closed position, the pii-'otal connection betweengso said member :andsaid: bar-j being: disposed Y on; tl ielopposite: side of .theisbar pivot from the; latch carried by-the: bar, and? means carried by; the bar and; engageable- Withithe; memberr: pivoted to the ba r' to rel'e'aserthei 85: latching 1 member =carrized by said. pivoted member: when. a the bar has: been swung 1 in Y a direction to release the doorv latching I means, v T Y lrln combination, a structure lnrvingtta door pivoted thereto; a menmber -secnred to said door: and; extending. laterally there from. and means for closingzaand latching saidhdoor. comprising a bar 'mountedz 011 a fixed pivot, a; llatchccarriedbysaidibar-iand and engageablewith: the. late-wily extend 1 ing member secured torthe door when the door is in: closed positiong'av member. pivoted to said. bar and havinga latching ele ment' en-ga gearble. =WltlI said; laterally extende o in-g; member whenzflthel door" isin-z partially closed. position, the pivotal:-connection. be= tween saidmember and said: bar being: dis

' posed: on. thee-opposite side otithe barapiyotr from the latch carried; by the bar, and 105 gravityactuat ed .n-ieans pivoted to said bar: andfengage ablebeneath the laterally extend: P ingemem-ber carriedv by: thed'oor for retain ing, the latching mechanismagainst '1 accie dental-release. 1 1 11 .In. combination; a structure" havingm door-pivoted thereto, a memben secuiedwto said door and "extending laterallytheretron iand 'means for closing :and 1 latching door comprising a bar mounted on a fixed 1 5: I p pivot, a latchcaniied by-sa-id bar and; en' a structure having, a pivoted-v thereto,v a member secnredtov said loorand extending laterally there-from and-i means-tor. closing and latching; saidi gageable with the laterally;extending; means secured tovthe door-When the-door is ins closed; position,-z.;a.-member'pivoted: towsaidfi bar and having: a latching-1 element eirgagew- 1 able with saidsl laterally ext,endingv member when the, door is in partially fclosed post-- tion,-. .the' pivotal conne'ctionibetween Satut mechanism against accidentalrelease gan- Y 11 means carried by the bar and engageable with the member pivoted to the bar to release the latching member carried by said pivoted member When the bar has been swung in a direction to release the door latching means.

16. A door lock comprising a member pivoted on a fixed support, a latch pivoted on said member and adapted to lock the door in partlv closed position and a latch fixed on said member and adapted to lock the door in full closed position.

17. A door lock comprising a member pivoted on a fixed support, a latch pivoted on said member and adapted to lock the door in partly closed position and a latch fixed on said member and adapted to lock the door in full closed position, and means for preventing the release of saidseconrl latch from the door.

18. A door lock comprising a member pivoted on a fixed support, a latch pivoted on said member and adapted to lock the door in partly closed position and a latch fixed on said member and adapted to lock the door in full closed position, and means on said member for preventing the release of said second latchflfrom the "door.

19; A door lock comprising a member pivoted on a fixed support, a latch pivoted on said member and adapted to lock the door in partlv closed position and a'latch: fixed on said member and adapted to lock the door in full closed position, and means for releasing said first latch from looking position. v

20. A door lock comprising a member uivoted on. a fixed support, a latch pivoted on said member and adapted to lock the door in partly closed position and a latch fixed on said member and adapted to lock the door in full closed'position, means for releasing said first latch from looking posi. tion, and means for preventing the release of said second latch from the door.

In Witness whereof, I have hereunto set day of July, 1924; 

